Russian astronauts encounter strange beings up in space in this collection of scenes from "Russia's Secret Files." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our ...

You think the moon is natural, they say it was built. Watch new episodes of Ancient Aliens Fridays 9/8c on HISTORY. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our ...

What if our technology is alien? Watch new episodes of Ancient Aliens Fridays 9/8c on HISTORY. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: ...

An ancient mysterious crash may be evidence of advanced technology. Watch new episodes of Ancient Aliens Fridays 9/8c on HISTORY. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full ...

How did these 18,000 year-old remains end up with modern tools? Watch new episodes of Ancient Aliens Fridays 9/8c on HISTORY. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full ...

Experts discuss the creation of a new element and what it means in regards to aliens in this collection of scenes from " #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes ...

Giorgio meets with an ex-cop who investigates people who have been abducted by aliens in this collection of scenes from "The Returned." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch ...

Is the Indian god Shiva really an alien? How else could the Kailasanthar Temple have been built? Learn the theories in this collection of scenes from "Shiva the Destroyer." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT ...

Ancient astronaut theorists believe that the ancient Egyptian tombs of early leaders served a more extraterrestrial purpose, and sacred texts hold all of the answers, in this clip from Season 5, "Secrets of the Tombs." Watch all new episodes of Ancient Aliens, returning soon, and stay up to date ...

Found during an excavation of a shipwreck in Sicily are metal ingots over 2600 years old made up of a mysterious metal compound. Could it be orichalcum, rumored to have covered Poseidon's Temple in the lost city of Atlantis? #AncientAliens Subscribe for more from Ancient Aliens and other great ...

How can a dagger from King Tut's tomb boast such modern craftsmanship? Ancient astronaut theory suggests aliens taught Egyptians advanced metallurgy techniques. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more ...

This mysterious tool was found 30 feet in the ground and has a significant patina, evidence that it's quite ancient. Yet it seems to be made of aluminum, which was not invented back then. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...